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Information × Registration Number 0212U005799, 0112U004573 , R & D reports Title Polymer Distributed Feedback Lasers Based on Organic-Inorganic Nanocomposites. popup.stage_title Head Smirnova Tatiana Nikolaevna, Доктор фізико-математичних наук Registration Date 28-12-2012 Organization Institute of physics NASU popup.description2 Polymeric lasers with distributed feedback are cheapest, a simple designed and comfortable for usage as a sources of coherent light emission. As a main gain media for lasers it can be used laser dyes, crystal and organic semiconductor nanocrystal quantum dots (NQDs). Despite the fact that first such type lasers were proposed in 70-th years of last century, now DFB-structures are considered as a most perspective for creation of high efficiency frequency tunable micro lasers with low generation threshold, which are capable to generate nano, pico- ,and femto-second pulses and can be included into optical micro-chip, micro-fluids channels and used as a chemical and biologic sensors. Usage the technology for creation lasers of new generation includes two directions. These are fabrication based on nano-composites, first new active media and second DFB-structures which are used as a resonators for lasers. At the designing new laser media the main emphasis paid to semiconductor nano-crystal quantum dots (NQDs), which are imbedded into different matrix including polymeric ones. Quantum size effect leads to changes in energy structure of NQDs, which is significantly different from energy structure of bulk material and allows to decrease the generation threshold and stable lasing at the room temperatures. In the other hand the changes of NQDs size from 1 to 10 nm give us to vary wavelength in range of 1 eV. Investigation in these directions allow possibility to obtain novelty composite materials with a special features which can replace volume bulk crystalline compounds in light emissive devices, micro-lasers and amplifiers. The aim of the project is: -creation of simple and low cost holographic technology of production polymeric laser with distribution feedback based on nano-composites with included NP different types. -formation and investigation of polymeric DFB-lasers with volume resonator, frequency tunable, high lasing efficiency and low generation threshold. Product Description popup.authors Єжов Павло Валентинович Кохтич Людмила Михайлівна Смірнова Тетяна Миколаївна popup.nrat_date 2020-04-02 Close